Project Scope Management - MEP

A: Locking scope on a drifting system risks a failed revalidation and theatre downtime later. The correct choice respects why HTM 03-01 exists: maintaining consistent dilution and pressure control over time. A negative trend signals loss of control authority, so holding scope to find the cause avoids future non-compliance and rework.

A: Misreading the number can mask a real shortfall and let an undersized system slip through scope closeout. Converting 2.88 m³/s to 10,368 m³/h and dividing by 180 m³ gives 57.6 ACH, which shows the system is near typical theatre targets and frames the 4% drop correctly.

A: Signing off in the wrong order can leave you owning someone else’s problem when the room fails validation. Starting at the HEPA confirms resistance, then pressure cascade confirms containment intent, and only then does total airflow make sense as a scoped deliverable.

A: Ignoring the real cause leads to repeat testing and eventual failure at revalidation. Progressive filter loading explains steady loss of flow at constant speed, matching the observed trend without inventing control or measurement faults.